The chemical properties of the halogen elements and the hydrogen halides: past paper questions

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• Question 21May/June 2026, paper 11Multiple choice1 mark

  Which statement is correct?

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• Question 22Oct/Nov 2025, paper 11Multiple choice1 mark

  What happens when iodine solution is added to a solution of sodium bromide?

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• Question 22Oct/Nov 2024, paper 11Multiple choice1 markHas a diagram

  The table refers to the hydrogen halides. Which row is correct?

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• Question 23Oct/Nov 2023, paper 11Multiple choice1 mark

  Which statement about the halogens or halide ions is correct?

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• Question 23May/June 2026, paper 12Multiple choice1 mark

  Which is the strongest oxidising agent?

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• Question 12Oct/Nov 2023, paper 12Multiple choice1 mark

  Chlorine reacts with sodium bromide. $$\frac{1}{2}{\text{Cl}}_2+\text{NaBr}\to \text{NaCl}+\frac{1}{2}{\text{Br}}_2$$ Which words correctly describe this reaction?

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• Question 1May/June 2026, paper 23Structured12 marks

  The chlorides of Period 3 elements show different physical and chemical properties.

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• Question 18May/June 2025, paper 11Multiple choice1 mark

  Three statements about the halogens, chlorine, bromine and iodine and their compounds are listed. 1 The halogen with the highest boiling point has atoms which form the strongest bond to hydrogen.

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• Question 2Oct/Nov 2024, paper 21Structured13 marks

  Chlorine is one of the elements in Group 17 of the Periodic Table. Describe the colours of the Group 17 elements, chlorine to iodine, at room temperature.

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• Question 19May/June 2025, paper 13Multiple choice1 mark

  Which statement about the properties of halogens and hydrogen halides is correct?

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• Question 9May/June 2023, paper 11Multiple choice1 mark

  Bromine reacts with aqueous sodium hydroxide at $25{}^{\circ }\mathrm{C}$. reaction 1 $\mathrm{B}{\mathrm{r}}_2(\mathrm{a}\mathrm{q})+2\mathrm{N}\mathrm{a}\mathrm{O}\mathrm{H}(\mathrm{a}\mathrm{q})\to \mathrm{N}\mathrm{a}\mathrm{B}\mathrm{r}(\mathrm{a}\mathrm{q})+\mathrm{N}\mathrm{a}\mathrm{O}\mathrm{B}\mathrm{r}(\mathrm{a}\mathrm{q})+{\mathrm{H}}_2\mathrm{O}(\mathrm{l})$ The $\mathrm{N}\mathrm{a}\mathrm{O}\mathrm{B}\mathrm{r}$ formed is unstable at $25{}^{\circ }\mathrm{C}$ and reacts further.

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• Question 21May/June 2024, paper 12Multiple choice1 markHas a diagram

  The table shows statements about some of the properties of halogens and their compounds and explanations for these properties. Which row shows a correct statement about the property and a correct explanation for the statement?

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• Question 24May/June 2023, paper 13Multiple choice1 mark

  Which statement about the halogens is correct?

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• Question 22May/June 2024, paper 13Multiple choice1 markHas a diagram

  $\mathrm{I}\mathrm{C}\mathrm{l}$ is made when $\mathrm{C}{\mathrm{l}}_2$ and ${\mathrm{I}}_2$ react together. $$\mathrm{C}{\mathrm{l}}_2+{\mathrm{I}}_2\rightleftharpoons 2\mathrm{I}\mathrm{C}\mathrm{l}$$ $\mathrm{I}\mathrm{C}\mathrm{l}$ reacts with water.

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• Question 1May/June 2024, paper 21Structured10 marks

  The elements of Group 17 are called halogens. Complete Table 1.1.

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